You can never tell what you will find until you get there....when I was in college there used to be a closed season in the park from Sept. 15 until April 15....would always try to get up there on "opening day" or as close to it as my class schedule would allow...some years it would be cold and the trees still in their winter starkness...the next year you might find everything in buds and wildflowers with warm temps....mother nature has her own time table....same with the bugs and the fish....but when everything does come together it can be a magical time.